Machine for cleaning, drying, heating, and mixing tarred macadam.



. -R. AMES MACHINE FOR CLEANING, DRYING, HEATING, AND MIXING TARBED MAOADAMZ APPLICATION TILED AUG-.29, 1911.

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file/why limes I v I R. AMES. MAGHINE FOR GLBANIN G, DRYING, HEATING, AND MIXING TARRED MAGADA APPLICATION TILE!) 11176.29, 1911. l 4

Patented Oct. 15, 1912.

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R. AMES. MACHINE FOR CLEANING, DRYING, HEATING, AND MIXING TARRED MAUADAM.

. APPLIOATIQN FILED AUG. 29, 1911. 1,041,226.

Patented Oct 15, 1912.

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' amnaan Anne, or BRIGHTON, ENGLAND.

MACHINE non cnnanrne, DRYING, HEATING, AND MIXING TARRED ,MAGADAM.

Specification of Letters Patent.

, Patented Oct. 15,1912.

- Application filed August '29, 1911. Serial No. 646,752.

' a'ndMixing' Tarred Macadam, of which the following is a specification. I

- This invention relates to a machine for making 'tarred macadam from new or old raid material, the objectyof the invention being to enable the machine to deal with i '8XlSt1-I1g'I'O3d material and to convert it. into.'tarred macadam. The machine may be 15 formbeing particularly applicable for coneither stationaryor portable, the portable verting .material which has been removed from the surface of a roadbyscarifying,

into tjarred macadam, the operation being conducted on the spot instead of at a depot. My invention is illustrated by the accom panying drawings in which Figure '1 is longitudinal section of a machine for.cleaning, drying, heating. and mixing tarred macadam, constructed according tothis invention. Fig. 2 is cross section of the same on line A, B, Fig. 1. Fig.'3 is end elevation of. the machine. Fig. 4 shows dia' grammatic arrangement of fiues and heater. The same numerals denote the same parts in all the figures.

Now according: to this invent-ion I provide a suitably shaped heating chamber 1, which if the machineis to be portable as shown, is mounted on wheels 2, 3.- Within the heating chamber is, located a revoluble body .which forms the cleaning, drying, heating and mixing apparatus which is constructed as follows.: I provide a metal cylinder or cone 4 which is inserted at each 1 end in a metal plate,.5 being the back plate fa-nd"6 thefront plate, the said cylinder or cone being secured to the said plates by means of' angle irons, or fianging and rivets in the usual way. Surrounding the'cylinder or cone 4 are a number of metal cylinders .8 which are secured at each end to the plates Sand 6 by means of angle irons, ,orfflanges,

The.

their diameter by the plates 5 and 6. At the feed end of the machine is a feed cone 10 secured to the plate 5 by-fia'nging, or by angle irons, and rivets, the said cone being provided with internal lifters 11 to guide the road material into .the' cylinders 8. The lifters 11 may be either straight or curved and they may be made of angle irons, the

lifters being long enough to extend from the outer end of the cone to the plate 5.

At the driving end of the machine. I at tach to -the plate 5 a metal ring-12 into which the cleaned, dried and heated stone,

slag, or other material falls from the cyl-= inders 8. The ring 12 is provided with lifters 13 which carry upward the material to be tarred and deliver it down a chute formed by the partitions 14 andthe pyramid 15, into the cylinder or cone 4 where it receives a coating of tar which is pumped into the said cylinder or cone through the pipe 16.

17 is an angle iron ring which serves to retain a certain amount of tar at the end of the cylinder or cone 4; to insure the stone or other material being thoroughly coated with tar. A

The superfluous tar falls'through the perforated periphery of the ring 12 into a gutter formed by two angle irons 18, 19 and the bottom of the heating chamber, and runs ofi into a suitable receptacle from whence it is returned to the tar tank.

The revoluble body is supported at the front end of the machine by means of a ring 20 which revolves on antifriction rollers 21 supported by the bracket 22 which is bolted to the frame 23 of the machine.

At the back or driving end of the machine the revoluble body is supported by a hollow shaft Ql'WlliCh is bolted or riveted to the ring 12. The shaft 24 rotates in .a swivel bearing 25 supported by the. pedestal 26.

27 is a'motor,preferably an oil or petrol engine, the crank shaft of which has ,keyed thereto a pinion. 28 whichgears with a spur wheel 29 on the countershaft 30, the countershaft being supported in bearings 31 and 32. pinion 33 keyed to the countershaft gearswith a spur wheel 34 keyed to the hollow shaft 24 so that the revoluble body is rotated'direct fromfa. motor carried by-the machine, nstead of being drivenfrom a tractor or portable engine.

The exhaust from the motor is preferably discharged into' the heating chamber.

35 is the water tank for cooling the motor cylinder, 36 and 37 being the usual circulatingpipes and 3S the exhaust pipe.

39-is a tank to contain tar'or other suitable substance,-for example a mixture of tar and oil, hereinafter called compound.

40 is a funnel connected to the tank 89,

and 4:1 is a'braoket to support a barrel 42'of tar or compound. The tar or compound from 'the' barrel'run's down the funnel 4:0 into the tank 39, from whence it flows into the tar heating apparatus now to-,be de scribed[ 1 1 x 43 is .a firebox providedwith firebars 44:.

Surrounding the firebox, 4:3, is a'flue; 45,

forming three sides of a' rectangle, and in- .side the flue is a boiler 46, the said boiler being rectangular in cross section and formingthree sides of a square or rectangle as shown by Figs. l and at. Secured thereto or formed integral with the top and bottom of the tar boiler 46 are vertical ribs 47 the said' ibs stopping short of the full length of the sides of the boiler, as shown by Fig, 4,

The path of the hot gases from the firebox around'the tar boiler is shown by the arrows Fig. 4,'the gases escaping from the firebox through apertures 48 into the fines.

' A hollow firebrick flue 29 having apertures therein is laid along the floor of the heating chamber 1, the said flue having open ends, anda correspondin flue 50 is provided on the underside of the roof casing below the smoke stack 51 in orderto'dis tribute the hot gases uniformly throughout the heating chamber. The hot'gases from the firebox' after passing around the tar boiler pass by way of the flue 49 into the heating chamber 1, and from thence to the smoke stack 51. The detritus which is screened out by the cylinders '8 falls down the chute 52 into a worm conveyer 53, by means .of which it is conveyed to the back of'the' machine; If the detritus is to be returned into themachine it is. raised by a suitable elevator (not shown) and delivered into-the dust hopper54c, from whence it falls into thehollow shaft 24: which is provided wit-ha worm 5 which conveys the detritus into the cylinder or cone 4: where itis mixed 46 and delivers it through the pipe 16 into 4 the cylinder or cone 4. If desired'the pump I and pipe 16 may bedispensed witheand the gutter used as a tar ;well whichis he ,tfull of hot tar from the heater, the head .0 tar in the tank being sufiicient to keep the gutter full of tar.

5.7 is an angle iron ring to prevent stones from becoming wedged between he plate 58 and the revolving feed cone 10.

The cylinder 4 and the cylinders. 8'are provided with internal angle iron helices to move the material under treatment along the said cylinders.

- The actionof the apparatus is asfollows :-The material to be treated is 'fed into a the machine through the hopper 59 and falls into the feed cone 10 the lifters in which convey the material into the cylinders 8, which latter by means of their rotation aided by the helices 60 move the material slowly to the opposite end of the machine, the perforated portion of the cylinders 8, sc'reenin out the dust, detritus and'binding materia which falls down the chute 52 into the worm conveyor 53. The material while passing" through the cylinders 8 is not only cleaned but is also thoroughly dried and.v heated ready for being" coated withtar. The

cleaned, dried and heated material which remains in the cylinders 8 falls into the ring 12 which delivers it into the cylinder or conel where it meets with a jet of tar from the pipe 16, or if the jet of tar is dispensed with, the materi'al'is carried by the rotation of t hering 12 through the tar well and is delivered already coated with tar into the cylinder or cone 4. In either case thetarred material is conveyed back to the front of the,

'machine by the internal helix, being turned over and 'over in its passage, consequentlyit gets thoroughly coated with tar for compound,

the superfluous tar or compound drainingofl as aforesaid. The fine material 'screened out by the cylinders '8 is re- :turned to the tarred macadam by means of the conveyer and elevator,- or by hand, to form a good binding material thus avoiding spongy roads and the expense of-sanding the road after the tarred macadam is laid down. hen using new material the binding matrix may be fed into the machihe or added by hand to the tarred inacadam.

By' treating the material on the spot a saving of time and labor is effected as it hasbeen found in practice that hottarred macadam requires much less rolling. down than it does hen. cold, in addition there is no expense of carting the tarred macadam from a depot to the place where ithas to be laid down.

i The machine is as far as possible made of boiler plate.

said revoluble body,- a deli v'erydevice disposed'near the rear end of the revolubie ass of a central cylinder, or cone, a plurality of cylinders disposed in the form of a ring around the central cylinder, or cone, and rotating therewith, a portion of the outer peripheries of the outer cylinders being perforated and the said cylinders being closed for half their diameter at each end, a feed cone fitted with lifters at one end of said cylinders and a ring fitted with lifters at the other end of the cylinders, a chute to convey the cleaned, dried, and heated material into the central cylinder, helices in the cylinders, with means for supporting and for rotating the said cylinders as a whole, means for heating the tar and heatingchamber and means for coating the hot macada-mwith tar all substantially as set forth.

3. In a machine 'for'cleaning, drying, heating and mixing tarred macadam, the combination of a heating chamber, a revoluble body rotating therein, means for disposing of the screened out material from said body, means for rotating the revoluble body, .means for heating the tar and the heating chamber, and-means for forcing the tar from the tar boiler into the central cyl- ,i/nder, or cone, all substantially as set forth. 35 l the combination with a'heating chamber, a revoluble body mounted therein, means foret. In a machine of"the class described,

feeding material to said revoluble body, means for rotating the revoluble body, and means for heating the heating chamber.

5. In a machine of the class described, the combination with a heating chamber, a revoluble body mounted therein, means for feeding material to said revoluble body, means for rotating said revoluble body, means for heating the heating chamber, and means for coating the material fed into said revoluble body.

6. In a machine of the class described, the combination with a heating chamber, a central cylinder rotating in said chamber, a plurality of cylinders disposed around and rotating with said central cylinder,'meansf for rotating said central cylinder and surrounding cylinders, means for conveying the material into the surrounding cylinders,

means located in said cylinders for screen-- ing the material as it passes therethrough,

' and means for carrying off-the material screened out by the cylinders.

7. In a machine of the class described, the combination with a heating chamber, a central cylinder rotating in said chamber, a plurality of cylinders disposed around and rotating with said central cylinder, means plurality of cylinders disposed around and for rotating said central cylinder and su'rrounding cylinders as a whole, means for. conveying the material into the surrounding cylinders, means located in said cylinders for-screening the material as it passes therethrough, and means for carrying oil the material screened out by the cylinders.

8. In a machine of the class described, the combination with a heating chamber, a central cylinder rotating in said chamber, a plurality of cylinders disposed around and rotating with said central cylinder, means for rotating said central cylinder and sur rounding cylinders as a whole, means for conveying the material into the surrfounding cylinders, means located in said cylinders for screening out the material as it passes therethrough, means for carrying off ,the material screened out by the cylinders, and means for conveying said screened out material into the central cylinder.

9. In a machine of the class described, the combination with a heating chamber, a central cylinder'rotating in said chamber, a

rotating with said central cylinder, means for rotating said central cylinder and surrounding cylinders as a whole,- means for conveying the material into 'the surrounding cylinders, means located in said cylinders for screening out the material as it passes therethrough, means for carryingoff the material screened'out by the cylinders means for ,con veying said screened out material into the central cylinder, and means for conveying the material remaining in the surrounding cylinders into the central cylinder.

10. In a machine of theclass described, the combination with a heating chamber, a central cylinder rotating in said chamber, a plu- 1 05 rality of cylinders disposed around and rotating with said central cylinderymeans for rotating said central cylinder and surrounding cylinders, means for conveying the material into the surrounding cylinders, means 110.

located in said cylinders for screening out the material as 1t passes therethrough, means for carrying 'oif the material screened out by the cylinders, means for conveying said screened out material-into the central cylinder, means'for conveying the material remaining in the surrounding cylinders into the central cylinder, and means for tarring .saidmaterial in the central cylinder.

11. The combination with a heating chamber, central and surrounding cylinders'rotating therein, a portion of the outer peripheries of the surrounding cylinders being perforated and the said cylinders being closed for approximately half their diameter at each end, and means for feeding said surrounding cylinders, of means in the sur rounding cylinders for moving the materiat toward the rear end of the machine, means for heating said material as it passes through the said cylinders, means located at the rearend- "of the cylinders for delivering the (heated material into the central cylinder,

reaches the central cylinder.

and beans for tarring the material when it 12. The combination with a heating chamher-,Central and surrounding cylinders rotatlng therein, a'portion of the outer periphcries of the surrounding-cylinders being'perfor'ated and the said cylinders being closed for approximately half their diameter ateach end, and means for feeding said-surrounding cylinders, ofmeans, in the surrounding cylinders for moving the material toward the rear end of the machine, means Y for heating said material as it passesthrough the said cylinders, means located at the rear fiend-of thecylinders for delivering the heated,.material-intothe central cyl nder,

the central cylinder, and means lo'-, catedi'n the central cylinder for conveying means 'for tarring the material when it I H :tlie'ftarred material to the front, of the ma- 1' chine.

-" "13f" The combination with' a heating chamber, central and surrounding cylinders rotating therein and means for feeding said-surroundfing'cylin'ders, of means in 'the surrounding cylinders for moving the'material toward the rear end of the machine, .means for screening the material as it passes 1' through the cyl1nders,'means for heating.

saidmaterial as it passes through the cylinders, means located at the rear end of said cylinders for delivering the heated material -into the central cylinder, means for deliver- 'ing the screened material into the central cylinder, and means for tarring the mixedmaterial when it reaches the central cylinden.

145111 a machine 'of' the character [described, the combination with a heating chamber, of a revolubly mounted body therein, means for rotating said body, a .tar tank,

a tar heating means in communication with said tank, hollow apertured-flues provided with open endspand secured to the floor and roof of the heating chamber thereby provid- I I ing means for uniformly heating the heat in chamber, and means for delivering .the'

heated tar into the revol-uble body.

- 15-. In a machine of the character'described, the combinationwith a heating I chamber, of, arevolubly 'mounted" body therein, means for rotating said body, aftait tank,-a tar heatlngmeans 1n communicatlon with said tank, hollow apertured-fiues proj vided with open ends and secured to the H002 and roof of the heating chamber thereby providing. means for uniformly heating, the heating-chamber, means for delivering the I w- RICHARD AMES.- Witnesses:

'B. FOWLER, T. E. HALroiin. 

